P0123 2003 Nissan Altima Sedan Code - Throttle Position Sensor/Switch '1' Circuit High Input
Quick Answer
The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0123 2003 Nissan Altima Sedan indicates Throttle Position Sensor/Switch '1' Circuit High Input.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0123 2003 Nissan Altima Sedan Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0123 2003 Nissan Altima Sedan?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0123 2003 Nissan Altima Sedan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0123 2003 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0123 2003 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0123 in a 2003 Nissan Altima Sedan?
The common symptoms of OBDII code P0123 in a 2003 Nissan Altima Sedan may include issues such as poor acceleration, stalling, rough idling, and possible engine hesitation.
2. What does the OBDII code P0123 indicate in a 2003 Nissan Altima Sedan?
OBDII code P0123 in a 2003 Nissan Altima Sedan indicates a potential problem with the Throttle Position Sensor/Switch '1' Circuit High Input.
3. What are the possible causes of OBDII code P0123 in a 2003 Nissan Altima Sedan?
Possible causes of OBDII code P0123 in a 2003 Nissan Altima Sedan include a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or issues with the engine control module.
4. How can I diagnose the Throttle Position Sensor/Switch '1' Circuit High Input issue in my 2003 Nissan Altima Sedan?
Diagnosing the Throttle Position Sensor/Switch '1' Circuit High Input issue in a 2003 Nissan Altima Sedan involves using an OBDII scanner to read the trouble code and then testing the throttle position sensor and its related circuits for proper voltage and continuity.
5. Can I drive my 2003 Nissan Altima Sedan with OBDII code P0123?
It is not recommended to drive your 2003 Nissan Altima Sedan with OBDII code P0123, as it can lead to poor engine performance and potential safety hazards. It is best to address the issue promptly.
6. How can I repair OBDII code P0123 in my 2003 Nissan Altima Sedan?
Repairing OBDII code P0123 in a 2003 Nissan Altima Sedan may involve replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, or resetting the engine control module after the issue is resolved.
7. Is it necessary to reset the OBDII code P0123 after repairing it in a 2003 Nissan Altima Sedan?
Yes, it is recommended to reset the OBDII code P0123 after repairing the issue in a 2003 Nissan Altima Sedan. This can be done using an OBDII scanner or by disconnecting the car's battery for a few minutes.
8. Can a DIY enthusiast fix OBDII code P0123 in a 2003 Nissan Altima Sedan?
Depending on the individual's mechanical skills and knowledge, a DIY enthusiast may be able to fix OBDII code P0123 in a 2003 Nissan Altima Sedan by following repair guides and using the necessary tools.
9. How long does it typically take to repair OBDII code P0123 in a 2003 Nissan Altima Sedan?
The time it takes to repair OBDII code P0123 in a 2003 Nissan Altima Sedan can vary depending on the exact cause of the issue and the individual's experience. It may take anywhere from 30 minutes to a few hours to complete the repair.
10. What should I do if OBDII code P0123 persists in my 2003 Nissan Altima Sedan after repair?
If OBDII code P0123 persists in your 2003 Nissan Altima Sedan after repair, it is recommended to recheck the throttle position sensor, wiring, and connectors for any missed issues. Consulting a professional mechanic for further diagnosis may also be necessary.
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